#include "vp9/common/vp9_mvref_common.h"
-#define MVREF_NEIGHBOURS 8
-
-typedef struct position {
- int row;
- int col;
-} POSITION;
-
-typedef enum {
- BOTH_ZERO = 0,
- ZERO_PLUS_PREDICTED = 1,
- BOTH_PREDICTED = 2,
- NEW_PLUS_NON_INTRA = 3,
- BOTH_NEW = 4,
- INTRA_PLUS_NON_INTRA = 5,
- BOTH_INTRA = 6,
- INVALID_CASE = 9
-} motion_vector_context;
-
-// This is used to figure out a context for the ref blocks. The code flattens
-// an array that would have 3 possible counts (0, 1 & 2) for 3 choices by
-// adding 9 for each intra block, 3 for each zero mv and 1 for each new
-// motion vector. This single number is then converted into a context
-// with a single lookup ( counter_to_context ).
-static const int mode_2_counter[MB_MODE_COUNT] = {
- 9, // DC_PRED
- 9, // V_PRED
- 9, // H_PRED
- 9, // D45_PRED
- 9, // D135_PRED
- 9, // D117_PRED
- 9, // D153_PRED
- 9, // D207_PRED
- 9, // D63_PRED
- 9, // TM_PRED
- 0, // NEARESTMV
- 0, // NEARMV
- 3, // ZEROMV
- 1, // NEWMV
-};
-
-// There are 3^3 different combinations of 3 counts that can be either 0,1 or
-// 2. However the actual count can never be greater than 2 so the highest
-// counter we need is 18. 9 is an invalid counter that's never used.
-static const int counter_to_context[19] = {
- BOTH_PREDICTED, // 0
- NEW_PLUS_NON_INTRA, // 1
- BOTH_NEW, // 2
- ZERO_PLUS_PREDICTED, // 3
- NEW_PLUS_NON_INTRA, // 4
- INVALID_CASE, // 5
- BOTH_ZERO, // 6
- INVALID_CASE, // 7
- INVALID_CASE, // 8
- INTRA_PLUS_NON_INTRA, // 9
- INTRA_PLUS_NON_INTRA, // 10
- INVALID_CASE, // 11
- INTRA_PLUS_NON_INTRA, // 12
- INVALID_CASE, // 13
- INVALID_CASE, // 14
- INVALID_CASE, // 15
- INVALID_CASE, // 16
- INVALID_CASE, // 17
- BOTH_INTRA // 18
-};
-
-static const POSITION mv_ref_blocks[BLOCK_SIZES][MVREF_NEIGHBOURS] = {
- // 4X4
- {{-1, 0}, {0, -1}, {-1, -1}, {-2, 0}, {0, -2}, {-2, -1}, {-1, -2}, {-2, -2}},
- // 4X8
- {{-1, 0}, {0, -1}, {-1, -1}, {-2, 0}, {0, -2}, {-2, -1}, {-1, -2}, {-2, -2}},
- // 8X4
- {{-1, 0}, {0, -1}, {-1, -1}, {-2, 0}, {0, -2}, {-2, -1}, {-1, -2}, {-2, -2}},
- // 8X8
- {{-1, 0}, {0, -1}, {-1, -1}, {-2, 0}, {0, -2}, {-2, -1}, {-1, -2}, {-2, -2}},
- // 8X16
- {{0, -1}, {-1, 0}, {1, -1}, {-1, -1}, {0, -2}, {-2, 0}, {-2, -1}, {-1, -2}},
- // 16X8
- {{-1, 0}, {0, -1}, {-1, 1}, {-1, -1}, {-2, 0}, {0, -2}, {-1, -2}, {-2, -1}},
- // 16X16
- {{-1, 0}, {0, -1}, {-1, 1}, {1, -1}, {-1, -1}, {-3, 0}, {0, -3}, {-3, -3}},
- // 16X32
- {{0, -1}, {-1, 0}, {2, -1}, {-1, -1}, {-1, 1}, {0, -3}, {-3, 0}, {-3, -3}},
- // 32X16
- {{-1, 0}, {0, -1}, {-1, 2}, {-1, -1}, {1, -1}, {-3, 0}, {0, -3}, {-3, -3}},
- // 32X32
- {{-1, 1}, {1, -1}, {-1, 2}, {2, -1}, {-1, -1}, {-3, 0}, {0, -3}, {-3, -3}},
- // 32X64
- {{0, -1}, {-1, 0}, {4, -1}, {-1, 2}, {-1, -1}, {0, -3}, {-3, 0}, {2, -1}},
- // 64X32
- {{-1, 0}, {0, -1}, {-1, 4}, {2, -1}, {-1, -1}, {-3, 0}, {0, -3}, {-1, 2}},
- // 64X64
- {{-1, 3}, {3, -1}, {-1, 4}, {4, -1}, {-1, -1}, {-1, 0}, {0, -1}, {-1, 6}}
-};
-
-static const int idx_n_column_to_subblock[4][2] = {
- {1, 2},
- {1, 3},
- {3, 2},
- {3, 3}
-};
-
-// clamp_mv_ref
-#define MV_BORDER (16 << 3) // Allow 16 pels in 1/8th pel units
-
-static void clamp_mv_ref(MV *mv, const MACROBLOCKD *xd) {
- clamp_mv(mv, xd->mb_to_left_edge - MV_BORDER,
- xd->mb_to_right_edge + MV_BORDER,
- xd->mb_to_top_edge - MV_BORDER,
- xd->mb_to_bottom_edge + MV_BORDER);
-}
-
-// This function returns either the appropriate sub block or block's mv
-// on whether the block_size < 8x8 and we have check_sub_blocks set.
-static INLINE int_mv get_sub_block_mv(const MODE_INFO *candidate, int which_mv,
- int search_col, int block_idx) {
- return block_idx >= 0 && candidate->mbmi.sb_type < BLOCK_8X8
- ? candidate->bmi[idx_n_column_to_subblock[block_idx][search_col == 0]]
- .as_mv[which_mv]
- : candidate->mbmi.mv[which_mv];
-}
-
-
-// Performs mv sign inversion if indicated by the reference frame combination.
-static INLINE int_mv scale_mv(const MB_MODE_INFO *mbmi, int ref,
- const MV_REFERENCE_FRAME this_ref_frame,
- const int *ref_sign_bias) {
- int_mv mv = mbmi->mv[ref];
- if (ref_sign_bias[mbmi->ref_frame[ref]] != ref_sign_bias[this_ref_frame]) {
- mv.as_mv.row *= -1;
- mv.as_mv.col *= -1;
- }
- return mv;
-}
-
-// This macro is used to add a motion vector mv_ref list if it isn't
-// already in the list. If it's the second motion vector it will also
-// skip all additional processing and jump to done!
-#define ADD_MV_REF_LIST(mv) \
- do { \
- if (refmv_count) { \
- if ((mv).as_int != mv_ref_list[0].as_int) { \
- mv_ref_list[refmv_count] = (mv); \
- goto Done; \
- } \
- } else { \
- mv_ref_list[refmv_count++] = (mv); \
- } \
- } while (0)
-
-// If either reference frame is different, not INTRA, and they
-// are different from each other scale and add the mv to our list.
-#define IF_DIFF_REF_FRAME_ADD_MV(mbmi) \
- do { \
- if (is_inter_block(mbmi)) { \
- if ((mbmi)->ref_frame[0] != ref_frame) \
- ADD_MV_REF_LIST(scale_mv((mbmi), 0, ref_frame, ref_sign_bias)); \
- if (has_second_ref(mbmi) && \
- (mbmi)->ref_frame[1] != ref_frame && \
- (mbmi)->mv[1].as_int != (mbmi)->mv[0].as_int) \
- ADD_MV_REF_LIST(scale_mv((mbmi), 1, ref_frame, ref_sign_bias)); \
- } \
- } while (0)
-
-
-// Checks that the given mi_row, mi_col and search point
-// are inside the borders of the tile.
-static INLINE int is_inside(const TileInfo *const tile,
- int mi_col, int mi_row, int mi_rows,
- const POSITION *mi_pos) {
- return !(mi_row + mi_pos->row < 0 ||
- mi_col + mi_pos->col < tile->mi_col_start ||
- mi_row + mi_pos->row >= mi_rows ||
- mi_col + mi_pos->col >= tile->mi_col_end);
-}
-
// This function searches the neighbourhood of a given MB/SB
// to try and find candidate reference vectors.
static void find_mv_refs_idx(const VP9_COMMON *cm, const MACROBLOCKD *xd,
projects / platform / framework / web / crosswalk.git / blobdiff